Operation
The purpose of this section is to indicate the necessary procedures to perform the motor start up.
Pre start up controls for OMS, OMT and OMV motors
Before performing the first motor start up, the following points have to be checked:
•
Hydraulic components must be installed in accordance with their individual instruction.
•
To avoid contamination, plastic plugs in connection ports must not be removed until just before
connections are made.
•
Make sure the motor hydraulic connections allow the motor to rotate in the desired direction. For
motors with standard direction of rotation:
‒
Clockwise rotation (viewed facing the output shaft) with inlet pressure in the A port.
‒
Counter-clockwise rotation (viewed facing the output shaft) with inlet pressure in the B port.
B
B
A
A
151-1050.10
•
Select the hydraulic fluid as specified in the “
Oil types / Operating fluids
on page 9 section.
•
There must be full contact between motor mounting flange and connecting part.
•
Avoid pressing the motor into place by tightening the fixing bolts.
•
Avoid unsuitable seal materials, for example, twine and Teflon, on threaded unions. Use only the seals
supplied, such as O-rings, steel washers.
•
Make sure that all couplings are completely tightened to prevent leakage – never use more torque
than max values given in instructions.
•
Check to make sure the purity of the oil is better than 22/20/16 (ISO 4406-1999) and always use a filter
when replenishing the system.
W
Warning
The motor must be filled with fluid prior to any load applications.
Start up
During and immediately after the motor start up, any hydraulic system must be closely and frequently
checked.
Recommendation - To assure best motor performance, run the motor for approximately one hour at 30%
of rated pressure and speed before running at full load. When running make sure the motor and oil
temperature and noise level are sufficiently low. High temperature or noise level might be symptoms of
unforeseen operation conditions that have to be analyzed and cleared.
Check for system leakage and make sure the system is operating satisfactorily.
To ensure that the contamination in the hydraulic system does not damage the orbital motor, Danfoss
recommends the following procedure after a brief period in operation.
User Manual
ATEX instruction for OMS, OMT and OMV
Installation, operation and maintenance
14 |
©
Danfoss | September 2016
11160602 | AQ00000213en-US0103
